Find the last 4 digits (ZIP+4) for an address in 21784

ZIP 21784, Sykesville, MD is filled in. Just type the street address.

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ZIP Code 21784 – Sykesville, MD

Sykesville, Maryland · Carroll County · Eastern time

ZIP code21784
CitySykesville
StateMaryland
CountyCarroll CountyHoward County
Population39,258
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area56.13 sq mi
Center (lat, long)39.4011, -76.9737

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21784 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

21104 Marriottsville · 5 mi21723 Cooksville · 5.2 mi21765 Lisbon · 6.8 mi21797 Woodbine · 7 mi21794 West Friendship · 7.1 mi21048 Finksburg · 7.3 mi21136 Reisterstown · 7.4 mi21163 Woodstock · 8 mi

About ZIP 21784

ZIP code 21784 is assigned to Sykesville, Maryland. It crosses 2 counties; most of its land is in Carroll County. Its Census area covers about 56.13 square miles of land. The closest neighboring ZIP is 21104 (Marriottsville), about 5 miles away.

Every address in 21784 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources